Various clay stabilizers are discussed, and methods are proposed for evaluating their effectiveness. Laboratory tests are used to rate the relative efficiency of potassium chloride vs other salts and organic compounds. Advantages and limitations of the various clay stabilizers are described. These studies show that increased temperature improves the efficiency of KCI and that pH is not a significant factor, except in low-salinity solutions. Alternate materials are sometimes superior to KCI, but care must be taken when using substitute products.

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